If you get a double bogey on your first hole I can virtually guarantee you rushed your shot. You also probably also rushed to the course, rushed to the tee and ... you know the rest of the story. Some of us (most of us?) tend to be on the impatient side of just about, well, everything. My mentor, legendary Ken Venturi, gave me the greatest advice about rushing a game.
Check out my video and see if you agree.